Figure D.11.

FOCUS R4 maize: response surface of the cumulative irrigation depth over 20 years as a function of the irrigation parameter FLEACH (tested range: −1.0 to 1.2) and PCDEPL (tested range: 0.1–0.9)

• Irrigation option 5; RATEAP = 0.125 cm h⁻¹ = 30 mm day⁻¹ (top); RATEAP = 1.25 cm h⁻¹ = 300 mm day⁻¹ (bottom).